
Abie Roehrig, a twenty-year-old undergraduate, has put his name on a list of volunteers for a human-challenge trial to test the efficacy of a COVID-19 vaccine. A human-challenge trial for a vaccine would be nearly unprecedented: it would entail giving subjects a candidate vaccine against the virus, and then infecting them deliberately to test its efficacy more quickly than a traditional, safer vaccine trial. Larissa MacFarquhar talks about this highly controversial proposal with the epidemiologist Marc Lipsitch, who supports such trials for COVID-19, and the virologist Angela Rasmussen, who feels that the scientific benefits are too limited to justify the enormous risks. Plus, Jelani Cobb speaks with the legal scholar Ira P. Robbins about the shooting death of Ahmaud Arbery, and why prosecutors declined for months to arrest the white man who killed him. In the Arbery case, Robbins sees a fatal confusion of citizen’s-arrest laws, stand-your-ground doctrine, and racial profiling.
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Narrator/Host
This is the New Yorker Radio Hour, a co production of WNYC Studios and the New Yorker.
David Remnick
I'm David Remnick, and you're listening to the New Yorker Radio Hour.
AB Rohrek
I would like vaccine development to happen as quick as possible, and for that to happen, there have to be people who are willing to be part of these challenge trials, it seems. And if that's the case, then, you know, I don't see any good reason why it shouldn't be me.
David Remnick
This is Ab Rohrek. He's 20 years old, an undergraduate, and he's got some news to break to his mother. Elaine.
AB Rohrek
I know I've talked to you a bit about my involvement with human challenge trials, or at least my desired involvement with human challenge trials to help speed up the development of a vaccine for coronavirus. And that's basically why I want to talk to you, is that I would like to volunteer myself to be part of this trial, should it happen.
Elaine Rohrek
I'm pretty floored by that, but I think that it just seems like that's a huge risk to take, especially with just one kidney.
David Remnick
Larissa McFarker is a staff writer for the New Yorker. Larissa, you talked recently to Ab Rohrek. What's going on here?
Larissa MacFarquhar
Ab has volunteered to be a subject in a vaccine trial, a particular kind of high risk experiment called a human challenge trial. And his mother is pretty worried about it.
Elaine Rohrek
I totally admire and respect your desire to help people. I just don't know how safe it is. Right, but you just had your kidney out in July. I can't imagine that would be safe. I mean.
AB Rohrek
But basically, I want to put my name down, and if a trial comes about and experts deem that I am fit actually to be part of the. Of a human challenge trial, then I want to do it.
Elaine Rohrek
Whoa.
Larissa MacFarquhar
Wow.
Elaine Rohrek
I follow you and I understand that you want to help and that's the way you've always been, but it's.
AB Rohrek
I think I feel a sort of broader sense of obligation, or almost like a principled obligation that I know that there need to be people who are willing to step up. And I just feel this urge to be one of those people or framed the other way, I guess, you know, why shouldn't it be me? I guess having one kidney is a pretty good reason.
Elaine Rohrek
Yeah, because it's like, you're doing this for the universe, but you are my universe, so it's a little bit hard to. I guess I just need to know more, you know, just who's doing the testing, how much Covid are they Exposing you to. And are there any other people who volunteered besides you?
Larissa MacFarquhar
Yeah.
Ira P. Robbins
Yeah.
AB Rohrek
There's 16,000 people. Over 16,000 people now who have volunteered.
Elaine Rohrek
It's more than there were people in my hometown of Carlisle. That's a good sign.
David Remnick
I've got a lot of questions, Larissa, but first, explain what a Human Challenge trial is.
Larissa MacFarquhar
Yeah. So, normally, what you do in a vaccine trial is you give the vaccine candidate to several thousand people, you give several thousand others a placebo, and then everybody goes home. They go about their regular lives, and after several months, you see who's gotten the disease, who hasn't. And that tells you something about how effective the vaccine is. Well, just that phase alone takes many months, because what you're doing is you're just sending people around about their daily lives, and so they might not get it. And what's worse, people are not going about their regular lives. Right? They're staying at home. They're practicing social distancing. They're doing everything they possibly can to avoid getting sick. So if you were to follow the normal vaccine protocol and send people out to see if they get it or not, it could be much longer than that. They might not get it, and it might tell you nothing about the vaccine candidate at all. In a Human Challenge trial, you give volunteers a vaccine candidate, and then you expose them to the virus on purpose. That way, you can start to get a sense of whether the vaccine candidate works or not within a couple of weeks.
David Remnick
So who's signing up for that? I mean, that sounds awfully dangerous to be deliberately exposed to novel coronavirus.
Larissa MacFarquhar
It is. Of course, you know, to be clear, this is all still hypothetical. There are no Human Challenge trials happening right now in the US Trials, they would need to be approved by the fda. But, yes, AB Is volunteering to get Covid.
Elaine Rohrek
Well, I can understand wanting to make things faster, but that, you know, it just seems like certain people react to Covid in ways that are very quickly deadly. Right. So I just know the Tuskegee syphilis experience, like, there are bad cases of people being harmed by in these trials. So I don't know. But this one, it just somehow seems a bit more dangerous than giving your kidney away.
AB Rohrek
No, I understand, and I think you very well might be right. You know, this is a question for the scientists and the doctors about whether or not having one kidney will seriously compromise me. Should I be. Should I get coronavirus? Should I be part of a trial?
Larissa MacFarquhar
So AB said to his mom that more than 16,000 people, including himself, have signed up to Volunteer. But that was already several days ago. And I checked the number this morning. This morning there were more than 23,000 people signed up to volunteer to be exposed to Covid and in 102 countries. So this thing has become huge. Three researchers wrote a paper at the end of March, it was published, suggesting these human challenge trials. And, and a group of people were inspired by this idea and thought, well, how are we going to get people to sign up? They started an online signup sheet. This is a group called One Day Sooner. They're called One Day Sooner because they're estimating that each day that you cut off the process of developing a vaccine could save thousands of lives.
David Remnick
Wow.
Mark Lipsitch
People volunteer to do risky things on behalf of others that are riskier than this, including kidney donations all the time.
Larissa MacFarquhar
Professor Mark Lipsich was one of the co authors of the journal article in support of using challenge trials. So he's very much behind this idea.
Mark Lipsitch
The real reason I wanted to get this idea out there is that we really face a challenge that's very much worse than challenges we've faced before from infectious diseases. And it seems to me that even a very small benefit in terms of speeding up the approval or availability of a vaccine could be enormously valuable to humanity. If we really thought it was not acceptable for people to voluntarily take on risk on behalf of others, then we would have to shut down our police, fire, EMT and military operations, because that's how we run them, is we ask people to take on risks which are not definable fully in advance. And they're doing that as a job, but also on behalf of other people. And research needs special protections because of the history of bad things that have happened under the guise of research. But I think it's important to see this as one of the many areas where people can take on an altruistic risk if that's something they choose to do.
Larissa MacFarquhar
I've been talking to a few people about these volunteers who are signing up. And I think most people's first reaction is that's insane. Like, why would you voluntarily expose yourself to coronavirus? But it actually doesn't seem that strange to me. I mean, it feels like this is a world historical moment and this is in a sense the moral test that's held up for this generation. Are you gonna, you know, put yourself on the, on the line to help us out of this crisis and, you know.
David Remnick
Well, let me ask you this question then, Larissa. Let's say you have a 20 year old son or daughter.
Larissa MacFarquhar
Well, no, no, I know I know, I know.
David Remnick
How do you feel about your kid doing this?
Larissa MacFarquhar
Yeah, I asked Professor Lipsitch that same question. If someone you were close to, someone in your family, in the right age bracket, wanted to be part of this trial, what would you say?
Mark Lipsitch
I would probably try to discourage them, to be honest.
Larissa MacFarquhar
Wow.
Mark Lipsitch
There's this old Jewish idea that you should. That people who want to become convert to Judaism should be discouraged three times before they do it by a rabbi. And I'm not religious, so this is not a literal translation, but I think that this is a decision that should be done really with a lot of reflection and with understanding that there's a risk that something bad will happen. So I would not say, oh, yeah, go ahead. This is fine. I would discourage it because I think it is a risk. But I also think that people should have the ability and even my own children, if they were old enough.
David Remnick
Larissa, you've said this is controversial, and there do seem to be a number of ways for this to go very badly for a volunteer, you know. And we're also unclear about the effect of the coronavirus on the young. Initially we were told, well, this just doesn't affect children at all. Doesn't affect young people. If you're healthy and under a certain age, you're going to be just fine. You might not even know you had it. And that's largely true. But now we see young people getting extremely sick. Again, not in the same numbers as somebody 65 and older and so on. We hear about all kinds of unexpected symptoms and difficulties with this. It complicates matters immensely, doesn't it?
Larissa MacFarquhar
Of course. And I talked to a scientist who sees the issue very differently, a virologist who's worked on Ebola and other diseases.
Narrator/Host
When a person is infected with a virus, your body responds to that infection. Sometimes that response can be protective and keep you from getting sick, get rid of the virus and protect you. Sometimes that response can actually be harmful and make the disease worse. And I study the nature of those responses and how they contribute to one outcome or another.
Larissa MacFarquhar
Her name is Angela Rasmussen, and she's now studying the novel coronavirus.
Narrator/Host
We know so little about this virus other than that it can be lethal, that it's very difficult for a subject in one of these trials to give informed consent.
David Remnick
Tell me about Angela Rasmussen. What is her view here?
Larissa MacFarquhar
So she has a very different view from Professor Lipsitch. She does not believe that these human challenge trials are the way to go ethically. She feels that you can't really consent to be a volunteer in a trial where you the risks are unknown.
Narrator/Host
So if you sign up to join the military during wartime, you do sign up with the understanding that perhaps you may be going into combat and you could potentially even get killed. But you also do have a very good understanding of what the risks are. And in terms of doing any kind of human trial, whether it's a drug trial or a vaccine trial, people need to give informed consent. And what informed consent means is that they really have to be informed of the risks. Many of the people that I have seen, you know, very enthusiastically volunteer to be a subject in a Human Challenge trial seem to think that they are low risk. And while they acknowledge the possibility that there may be severe risks, they tend to focus on the fact that they don't have any pre existing risk factors and they're relatively young and healthy. And, and I wonder how the people who have volunteered for these trials, how many of them truly think that they are going to actually potentially die from participating in it.
Larissa MacFarquhar
So Dr. Rasmussen disagrees with these Human Challenge trials on ethical grounds, but she also feels that these trials are not the way to go scientifically because as we discussed before, you're gonna wanna have volunteers who are the absolute lowest risk population, very young, very healthy. But the people who need the vaccine the most are not like that at all. They're older people, people with diabetes or hypertension, or people who suffer from obesity. They're a very, very different set of people.
David Remnick
Why does that matter for a vaccine? We're worried about side effects.
Larissa MacFarquhar
You're right about side effects. But also like suppose a vaccine appears to work in this young, healthy population, it may not work remotely the same in this very different population.
Narrator/Host
One of the main reasons why you need to do much larger phase 3 clinical trials is to account for all of the diversity between different communities and groups of people. If we are looking at a small, relatively homogenous group of Human Challenge trial volunteers, it potentially might blind us to how other people outside of that homogenous group might be responding to the vaccine and it might change their susceptibility.
Larissa MacFarquhar
I put the same question to Mark Lipsich, who is advocating for Human challenge trials.
Mark Lipsitch
It's important to realize that if we had a vaccine for young, healthy people, that vaccine would have enormous social value in terms of not only allowing some of those people to, or many of those people to go back to work because of their direct protection, but also in indirectly protecting those to whom they're exposed who might not have gotten the vaccine yet. So building herd immunity in the young, healthy population would be no small victory. It would be quite a large victory.
Narrator/Host
This is a really unusual situation. And most of the time people aren't like, let's shave off a couple months by doing human challenge trials for a vaccine. So that's unprecedented. But this is a great conversation to have. I mean, I think that this needs to be discussed by more scientists than just my colleagues that you mentioned before.
Larissa MacFarquhar
There are thousands and thousands of mostly young people who've signed up to volunteer to be in these human trials. If they're listening, I think they'll get a sense from you that you don't think it's a good idea. So what should they do? Is there anything they can do to help?
Narrator/Host
Absolutely. And that is they can enroll as subjects in a standard vaccine trial. We need large groups of people to volunteer to be in a phase three vaccine trial. So if people are signing up to get infected with the virus, I suggest they sign up to just get the vaccine. It would certainly be safer to them, but they would still be making a tremendously important contribution to vaccine development.
David Remnick
Larissa, you wrote a book about altruism and you've also written in the magazine about people who really put themselves and their health at risk. And they somehow diminish their own lives in order to help others in very serious ways too. Here's a 20 year old who says this. All these unknown risks to me are worth it for the greater good. Now, is that youth talking or is there more to it than that? Are people like, absolutely. Somehow wired differently from the rest of us?
Larissa MacFarquhar
I definitely don't think it's just youth talking. When I was. When I was researching my book, I talked with people of all ages who were just as willing to risk themselves for their principles as AB is. And they weren't weeping martyrs either. They wanted to live that way. They didn't want to just be comfortable. What I think does tend to happen as people get older is that others become dependent on you. Kids, older parents. And that can be a reason not to take risks yourself. The tricky thing is that this can be both a very good reason and a kind of moral alibi. Protecting your family is of course, a very deep and essential human instinct. But it can also be an excuse not to care about anyone else. If I had a 20 year old kid who wanted to volunteer to do this, I would be so proud of them. I would be terrified. And I don't know that I would have the strength not to try to talk them out of it. But sitting here knowing I don't have a 20 year old, which is a much easier situation. I like to think that I would support them. I think it's an amazing thing to do.
David Remnick
Larissa McFarker is a staff writer and she spoke with Mark Lipsich, Angela Rasmussen and AB Rohrek, a volunteer. This is the New Yorker Radio Hour. More to come. This is the New welcome to New Yorker Radio Hour. I'm David Remnick. There are things we don't know yet about the killing of Ahmaud Arbery in Georgia. And as in any trial, the suspects are entitled to the presumption of innocence. But this much seems beyond question. Two white men, one armed with a shotgun, went in pursuit of a black man who was jogging. They later told police that they suspected him of some break ins in the neighborhood. There was some type of interaction and Travis McMichael shot and killed Ahmaud Arbery. But local prosecutors didn't see the shooting as a crime. They didn't arrest McMichael and his father, Greg, for more than two months. To understand the laws and the mindset that makes such a thing possible, the New Yorker's Jelani Cobb turned last week to Ira P. Robbins. Robbins is a professor at the Law School of American University and he's co director of the Criminal Justice Practice and Policy Institute. Here's Jelani Cobb with Ira P. Robbins.
Jelani Cobb
You know, Mr. Barnhill, the second prosecutor who later recused himself, wrote a letter to the police department, the local police department, saying it appears that there here he's referencing the McMichaels. Their intent was to stop and hold this criminal suspect until law enforcement arrived. Under Georgia law, this is perfectly legal. Does the statute explicitly allow for pursuit and under what circumstances?
Ira P. Robbins
Well, I'll answer that, but add another layer. So when the McMichaels were pursuing Mr. Arbery, thinking they had the right to make a citizen's arrest because they think that Mr. Arbery was committing a crime in that dwelling under construction, I guarantee you the McMichaels had no idea whether the crime being committed was a felony or a misdemeanor. In fact, in the police report, it says two crimes. It mentions two crimes. One is homicide and the other is criminal trespass. Well, if it's criminal trespass, that's a misdemeanor. And in citizens arrest Law, the arrestors would have fewer rights. If it was a burglary that Mr. Arbery was committing, that would be a felony. And the citizens arrest law would allow greater leeway to the citizens.
Jelani Cobb
So with that in mind, was it surprising to you that the prosecutor, actually two prosecutors, looked at the situation and concluded that it was a valid citizen's arrest.
Ira P. Robbins
That conclusion indicates to me either that they don't know anything about the law of citizens arrest, or they are confusing citizens arrest with self defense and stand your ground laws.
Jelani Cobb
Could you sort those things out for us?
Ira P. Robbins
Sure. So under the citizens arrest law, basically a person can hold an offender or suspected offender until the police arrive. Basically, it's their job to operate as witnesses, not to be a substitute for the police, not to take the law into their own hands. You add to that though, that not all suspected offenders are willing to be arrested. And if an altercation ensues, then it may be that the arrestor and the suspect get into some situation involving use of force and then we get into self defense, which is a complicated area of the law. Even without issues of stand your ground, ordinary self defense law has a duty to retreat. With certain exceptions, the stand your ground law in Georgia eliminates the duty to retreat. So this case, in my opinion, stands or falls on whether the initial citizen's arrest confrontation was proper in the first place.
Jelani Cobb
So we've seen, you know, the stand your ground laws that really entered our consciousness around the case of Trayvon Martin, who was a teenager, 17 years old, who was shot by a neighborhood watchman by the name of George Zimmerman in Florida. And you know, this kind of thing, I think this is, I think this alerted the public to the fact that there were so many jurisdictions that had these laws. And now we're seeing a similar conversation beginning to take place around citizens arrests and the Ahmaud Arbery case. Is there any connection in your mind behind obviously such inflammatory situations, specifically around the lines of race with these doctrines?
Ira P. Robbins
Wonderful question. It seems to me what we're seeing here is a deadly combination of the law of citizens arrest, flawed self defense laws, particularly when we have a stand your ground doctrine, as we do in Georgia, and arguably racial profiling as well. It may be that when the McMichaels raised this idea of stand your ground and self defense built on citizens arrest, the whole thing is a pretext for what starts out as racial profiling. And I would argue that they should have stayed in the truck. We've seen the, the video. Greg McMichael was on the phone with the police who arrived certainly within a minute or so, perhaps less than a minute of the shooting. The role of a citizen in a citizen's arrest is to operate as a witness. It's not as if they had information that Mr. Arbery was escaping from a major felony. A bank robbery, a homicide, or even a burglary. There was no burglary here. If this was a burglary, perhaps there would have been a right to a citizen's arrest. But since this was only a criminal trespass, no such right. And if there is no such right to do a citizen's arrest here, then when Travis McMichael confronted Mr. Arbery and started the altercation, it seems to me that Travis McMichael was the initial aggressor and as such loses the right to self defense.
Jelani Cobb
Another thing that made this case stand out to me was that, you know, the offense that started the entire pursuit, at least according to the McMichaels, was his presence on the property, on the grounds of a house that was under construction. And you know, just a few months ago, before the, the COVID lockdowns began, I was visiting friends in Atlanta and I went for a walk. There's lots of new construction in the neighborhood. And I saw a house that was under construction and I thought, hmm, I wonder what the floor plan is for this place. And I didn't go inside, but I walked kind of up onto where the lawn would be and was looking around, I was like, oh, they're putting a staircase over here and a deck over there. And it was just a kind of interesting observation I made by walking through the neighborhood and continuing walking. And the idea that that could be provocation for an armed pursuit was unnerving and shocking to me. At the least.
Ira P. Robbins
I agree with you. And it seems to me that people don't know what the law is, especially a law that doesn't get a lot of attention, like citizens arrest law. So when somebody does something that even reasonable people might do, even if it might be a very minor crime, like criminal trespass, going onto someone's property when you don't have a right to be there, that doesn't justify detaining someone, using force, unreasonable force, and causing a death. If that part of this whole situation falls as I think it should, then any defense the McMichaels are raising, I think would fall like a house of cards. The foundation, the citizens arrest is not a good foundation.
Jelani Cobb
You've looked at lots of cases of citizens arrests and attempted citizens arrests. These laws have created lots of problems and lots of situations that seem to be on the face, very difficult and troubling. Why do they stay on the books?
Ira P. Robbins
A lot of laws whose time has passed stay on the books only because the legislature has not gotten around to repealing them or they think, well, maybe it's got these laws have some purpose that we don't presently see, so let's just leave them on the books and hope for the best. But when you see abuses like this, when you see unreasonable use of deadly force, officials have to stand up and pay attention. Because if we don't do something about it after such an obvious abuse in this case, then we're going to see many more abuses in the future. We don't want citizens arrest to become a pretext for an unfortunate end to situations that start with racial profiling. We want organized police forces where the members of the police force have been trained to deal with offenders. We don't want ordinary people to take the law into their own hands.
David Remnick
Ira P. Robbins is a law professor and co director of the Criminal Justice Practice and Policy Institute at American University's Washington College of Law. He spoke with Jelani Khan, a staff writer at the New Yorker. This is the New Yorker Radio Hour. Stick around. I'm David Remnick. Recently, staff writer Peter Hessler went to a dance club in China as that country continues to reopen and we'll find out what that was like next week. It's the New Yorker Radio Hour. See you next time.
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The New Yorker Radio Hour is a co production of WNYC Studios and the New Yorker. Our theme music was composed and performed by Meryl Garbus of Tune Yards, with additional music by Alexis Quadrado. This episode was produced by Alex Barron, Emily Bottin, Ave Carrillo, Rhiannon Corby, Calla Leah, David Krasnow, Gofen Mputubwele, Louis Mitchell, Michelle Moses and Steven Valentino, with help from Alison McAdam, Meng Fei Chen and Emily Mann. The New Yorker Radio Hour is supported in part by the Turina Endowment Fund.
This episode of The New Yorker Radio Hour, hosted by David Remnick, explores two intense and timely topics:
This episode offers a nuanced look at the personal valor and public complexity in the fight against COVID-19, while shining a critical light on the legal mechanisms—and their societal interpretations—that shape public morality and justice, particularly where race is involved. Through rich conversations and firsthand voices, it explores not only the risk and responsibility of individuals but also the repercussions of collective laws and norms.